Versatile grout bag type of underground support

Details Versatile grout bag type of underground support Versatile grout bag type of underground support

2008-01-18

2011-12-06

Lagman, Frederick L (Department: 3672)

Hydraulic and earth engineering

Earth treatment or control

Shoring, bracing, or cave-in prevention

C299S011000

Reexamination Certificate

active

08070394

ABSTRACT:
A support assembly (1) is provided for the roof or hanging wall (36, 114) of an underground mine. The assembly comprises at least one support elongate (30) and a grout bag (2, 60, 80, 90, 102, 108, 120) used in association therewith and wherein the grout bag is inflated with settable granular material or grout (42). The support elongate is substantially surrounded, in plan view, by the grout bag and set granular material or grout contained therein. Preferably at least one cross-member (28) extends generally diametrically across the top of the support assembly and is anchored to the roof or hanging wall by the support elongate. The grout bag is preferably suspended from the end regions of the cross-member. Various grout bags for inclusion in such a support assembly are also provided.

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